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Finding the Fourth Proportional to 22,107.81, 30,498.92 and 14,935.42

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Solution

The fourth proportional to 22,107.81, 30,498.92 and 14,935.42 is: 20,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,107.81 : 30,498.92 = 14,935.42 : x
  2. Step 2: Convert to fraction form
    22,107.81/30,498.92 = 14,935.42/x
  3. Step 3: Cross multiply
    22,107.81x = 30,498.92 × 14,935.42
  4. Step 4: Simplify right side
    22,107.81x = 455,514,283.21
  5. Step 5: Solve for x
    x = 455,514,283.21/22,107.81
  6. Step 6: Final answer
    x = 20,604.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.